Revisiting Ether-Derivatized Imidazolium-Based Ionic Liquids
A series of ether-derivatized imidazolium halides have been prepared and characterized. Contrary to literature reports, they are all crystalline solids and have melting points well above room temperature (50−100 °C). Single crystals of the imidazolium salts, obtained in situ by slow cooling from the...
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Published in | The journal of physical chemistry. B Vol. 111; no. 34; pp. 10095 - 10108 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
30.08.2007
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Online Access | Get full text |
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Summary: | A series of ether-derivatized imidazolium halides have been prepared and characterized. Contrary to literature reports, they are all crystalline solids and have melting points well above room temperature (50−100 °C). Single crystals of the imidazolium salts, obtained in situ by slow cooling from their molten state to room temperature, were analyzed by X-ray crystallography, revealing various anion−cation interactions in the solid state. Exchange of the halides with [Tf2N]- yielded room temperature ionic liquids with viscosities that are comparable to related 1-alkyl-3-methylimidazolium ionic liquids. Density functional theory combined with IR spectroscopy has been used to analyze the role of functionalization of the imidazolium side chain on the formation of the molecular and supramolecular structure of the compounds and its possible impact on their physical properties. |
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Bibliography: | istex:DEC80DC629323BA18EF8AB04DB268235EE87445F ark:/67375/TPS-ZPMP8L0S-R ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1520-6106 1520-5207 |
DOI: | 10.1021/jp073419l |